Roll type quantitative glue coating device for air-permeable base material of herbal warm moxibustion warm compress

Abstract

The application discloses a kind of herb warm moxa breathable substrate roll type quantitative glue coating device, it is related to glue coating device technical field, including underframe, support, drive roll, hollow die sleeve, support roll, glue supply pipe, spiral blade roll, power motor, transmission mechanism and positioning mechanism;Hollow die sleeve is equipped with the hollow hole matching warm paste contour, and glue supply pipe bottom strip taper glue outlet is attached to the inner surface of hollow die sleeve, and spiral blade roll controls glue discharge rate, and glue only fills and transfers to breathable substrate to hollow hole, transmission mechanism realizes the synchronous operation of roller body and compensates perimeter difference, and positioning mechanism is adjustable, realizes substrate center limiting, dynamically adjusts glue discharge width and limits die sleeve deviation.The application realizes fixed-point quantitative glue coating, reduces cutting waste glue waste, reduces raw material cost, avoids overflow adhesion problem, glue coating is uniform, position is accurate, can be adapted to a variety of width substrate, and it is beneficial to warm paste mass production.

Description

Technical Field

[0001] This invention relates to the field of adhesive coating equipment technology, specifically to a roller-type quantitative adhesive coating device for a breathable substrate of herbal moxibustion warming patch. Background Technology

[0002] Herbal moxibustion heat patches are a type of health care product that uses the synergistic effect of heating materials and herbal ingredients to provide warm care to specific parts of the body. They are typically composed of a breathable substrate, an adhesive layer, a herbal functional layer, and a release film. The breathable substrate serves as a carrier layer, which is responsible for fixing the herbal functional layer, maintaining the overall shape of the heat patch, and allowing for ventilation and heat dissipation. The adhesive layer is used to reliably fix the herbal functional layer to the surface of the breathable substrate and to ensure that the heat patch adheres to the skin or clothing during use.

[0003] In the manufacturing process of the above structure, the coating process of the adhesive layer is a crucial step. In the existing technology, the following process is usually used when coating the breathable substrate of the herbal moxibustion patch with adhesive: Breathable substrate is purchased and stored in rolls as raw material. During production, the rolls of breathable substrate are unwound and flattened by an unwinding mechanism and then fed into a coating device along the conveying direction. The coating device is equipped with a coating roller that rotates along with the conveying of the breathable substrate, evenly transferring and coating the adhesive onto the entire surface of the breathable substrate, i.e., performing full-area, full-width coating on the upper surface of the breathable substrate. After coating, the conveying mechanism sends the adhesive-coated breathable substrate into a lamination process, where a release film is applied to the adhesive layer, forming a composite roll consisting of the breathable substrate, the adhesive layer, and the release film stacked in sequence.

[0004] Subsequently, based on the specific shape and size required for the herbal moxibustion patch, the composite substrate after being coated with adhesive and attached with release film is cut (such as punching, die-cutting, etc.). After cutting, the finished patch with the predetermined shape is obtained for subsequent assembly and packaging processes.

[0005] However, the above-mentioned full-area adhesive coating process has some obvious technical defects.

[0006] Specifically, in the cutting process, only the area on the composite roll that corresponds to the shape of the finished herbal moxibustion patch is cut as the effective finished product. The remaining and discarded substrate material after cutting is still completely covered with the coated adhesive layer and release film.

[0007] Since this surplus material is usually discarded as waste instead of being used in subsequent processing, the adhesive attached to its surface is also discarded along with it, resulting in a large waste of adhesive, significantly reducing the utilization rate of the adhesive and increasing the cost of raw materials.

[0008] At the same time, the method of applying adhesive to the entire area will inevitably lead to a large total consumption of adhesive, and the presence of excess adhesive layer may also cause derivative quality problems such as adhesive overflow at the product edges and adhesion between adjacent sheets, increasing the difficulty of subsequent processing and hindering the stable mass production, high efficiency and low cost of herbal moxibustion patches. Summary of the Invention

[0009] Based on this, the purpose of the present invention is to provide a roller-type quantitative adhesive coating device for breathable substrate of herbal moxibustion warming patch, so as to solve the technical problems mentioned in the background art.

[0010] To achieve the above objectives, the present invention provides the following technical solution: a roller-type quantitative adhesive coating device for breathable substrate of herbal moxibustion patch, comprising a base frame, two sets of supports mounted on the base frame, a drive roller for cyclically mounting a perforated mold sleeve, and a support roller for supporting and conveying the breathable substrate. The support roller is located below the drive roller. After the breathable substrate is released from the unwinding device, it passes between the perforated mold sleeve and the support roller. The support roller is used to support and convey the breathable substrate and make the upper surface of the breathable substrate adhere to the outer surface of the perforated mold sleeve to complete the adhesive transfer. A glue supply pipe is used to supply glue to the hollow mold sleeve. The glue supply pipe is connected to two sets of glue delivery pipes. The two sets of glue delivery pipes are respectively connected to the two ends of the glue supply pipe to realize the glue circulation delivery. The hollow mold sleeve is made of rubber. The width of the hollow mold sleeve is adapted to the width of the breathable substrate to be processed. The hollow holes on the hollow mold sleeve are arranged in the shape of the herbal moxibustion patch. A spiral blade roller installed inside the glue supply tube for pushing glue, and a positioning mechanism for limiting the position of the breathable substrate and the hollow mold sleeve, which can be adapted to different substrate widths. The hollow mold sleeve is rotatably assembled between two sets of drive rollers. The hollow mold sleeve has hollow holes that match the outline of the finished herbal moxibustion patch, which are used to transfer glue only in the corresponding area of ​​the finished patch. The bottom of the glue supply tube is provided with a strip-shaped conical glue outlet, which is in contact with the inner surface of the hollow mold sleeve and is used to quantitatively fill glue into the hollow hole of the hollow mold sleeve. The bottom of the strip-shaped conical glue outlet is in contact with the surface of the hollow mold sleeve without hollow holes, which is used to prevent glue from being discharged when passing through the strip-shaped conical glue outlet in the non-hollow area of ​​the hollow mold sleeve. Glue is only allowed to enter the hollow hole when it passes through the strip-shaped conical glue outlet. The spiral blade roller is located inside the glue supply pipe and is rotatably connected to the glue supply pipe. The positioning mechanism is slidably mounted on the base frame to achieve centering of the breathable substrate to prevent deviation, dynamically adjust the effective width of the glue dispensing, and limit the axial displacement of the hollow mold sleeve. The positioning mechanism includes a sliding frame, a slip ring, a sealing plate, a vertical positioning rod, and a guide rod. The slip ring is slidably sleeved on the outer periphery of the support roller, and the slip ring is used to limit the left and right movement of the breathable substrate. The sealing plate is fixedly installed on the top of the slip ring. The sealing plate slides and fits against the bottom surface of the glue supply tube. It is used to dynamically close part of the strip-shaped conical glue outlet according to the width of the substrate to change the actual glue discharge width. The vertical positioning rod is fixedly mounted on the slip ring and abuts against the side of the hollow mold sleeve to limit the axial movement of the hollow mold sleeve. The sliding frame is fixedly connected to the slip ring; The two sets of guide rods are fixed on both sides between the two sets of brackets, and the top of the vertical positioning rod is slidably connected to the guide rod; It also includes a dual-axis motor and two sets of lead screws with opposite directions of rotation. The dual-axis motor is fixedly mounted on the base frame. The output shaft of the dual-axis motor is connected to the two sets of lead screws respectively. The two sets of lead screws are threadedly engaged with the sliding frames of the two positioning mechanisms respectively, and are used to drive the two positioning mechanisms to move synchronously towards or away from each other. It also includes a power motor for driving the helical blade roller and a transmission mechanism for achieving synchronous transmission between the drive roller and the support roller. The power motor is connected to the spiral blade roller drive to control the glue discharge rate of the strip-shaped conical glue outlet; The transmission mechanism is connected to the drive roller and the support roller respectively, and is used to compensate for the difference in the circumference of the roller body, so that the linear speed of the hollow mold sleeve is synchronized with the conveying speed of the breathable substrate. The transmission mechanism includes a first transmission gear, a second transmission gear, and a transmission belt; The first transmission gear is fixedly mounted on one end of the shaft of each set of drive rollers. Another set of first transmission gears is also rotatably mounted on the bracket. The multiple sets of first transmission gears are connected by a transmission belt to ensure that the two sets of drive rollers rotate synchronously. The second transmission gear is fixedly mounted on the end of the support roller shaft. The second transmission gear meshes with the first transmission gear on the bracket. The second transmission gear and the first transmission gear are set with a matching gear ratio to compensate for the difference in circumference between the drive roller and the support roller. It also includes a protective shell, which is assembled on the outer end face of a set of brackets to protect the transmission mechanism.

[0011] In summary, the present invention has the following main beneficial effects: 1. This invention employs a perforated mold sleeve that matches the molding contour of the herbal moxibustion heat patch, and ensures that the strip-shaped conical glue outlet at the bottom of the glue supply tube is aligned with the inner surface of the perforated mold sleeve. This allows the glue to fill only the perforated area of ​​the mold sleeve and transfer to the surface of the breathable substrate. Glue is applied precisely and quantitatively only to the effective area corresponding to the finished heat patch, leaving the substrate untouched. Consequently, no glue layer adheres to the surface of the substrate scrap generated during subsequent die-cutting and punching, preventing adhesive from being wasted with the waste material. This significantly improves glue utilization, reduces glue consumption and raw material costs. Simultaneously, it effectively suppresses derivative quality problems such as edge glue overflow and sheet adhesion caused by full-area glue application, improving finished product yield and facilitating stable mass production of heat patches. 2. This invention controls the glue discharge rate of the strip-shaped conical glue outlet by adjusting the speed of the spiral blade roller with a power motor. It can achieve quantitative glue discharge for hollow holes of different sizes, flexibly adapt to the glue layer thickness and glue amount requirements of different specifications of heat packs, and the glue amount is controllable and uniform. Meanwhile, a positioning mechanism driven by a dual-axis motor and a reverse lead screw is set up. The mechanism uses slip rings to limit and center the breathable substrate, the sealing plate to dynamically adjust the glue discharge width according to the substrate width, and the vertical positioning rod to guide and prevent the hollow mold sleeve from deviating. It can be adapted to substrates of various widths and has strong versatility. Furthermore, by matching the number of teeth of the first and second transmission gears in the transmission mechanism to compensate for the difference in circumference between the drive roller and the support roller, the linear speed of the hollow die sleeve is kept synchronized with the substrate conveying speed, ensuring accurate glue transfer position and avoiding glue misalignment, thus further guaranteeing the processing accuracy of the glue application process. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is an exploded view of the internal structure of the present invention; Figure 4 This is a schematic diagram of the adhesive supply tube of the present invention; Figure 5 This is an exploded view of the internal structure of the adhesive supply tube of the present invention; Figure 6 This is a partial exploded view of the structure of the present invention; Figure 7 This is a partial structural diagram of the present invention.

[0013] In the picture: 1. Support; 2. Adhesive supply hose; 201. Strip-shaped conical adhesive outlet; 202. Adhesive delivery pipe; 3. Spiral blade roller; 4. Drive roller; 5. Hollow die sleeve; 6. Support roller; 7. Power motor; 8. Transmission mechanism; 801. First transmission gear; 802. Second transmission gear; 803. Transmission belt; 9. Positioning mechanism; 901. Sliding frame; 902. Slip ring; 903. Sealing plate; 904. Vertical positioning rod; 905. Guide rod; 10. Dual-shaft motor; 11. Lead screw; 12. Base frame; 13. Protective shell. Detailed Implementation

[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0015] The embodiments of the present invention will now be described.

[0016] Example like Figures 1-7 As shown, this embodiment provides a roller-type quantitative adhesive coating device for breathable substrate of herbal moxibustion warming patch, including a base frame 12. Two sets of brackets 1 are fixedly installed at both ends of the top of the base frame 12. A drive roller 4 is rotatably mounted between the two sets of brackets 1. A hollow mold sleeve 5 is circumferentially sleeved on the outside of the two sets of drive rollers 4. The hollow mold sleeve 5 has an array of hollow holes that match the outline of the finished herbal moxibustion warming patch. The hollow mold sleeve 5 is made entirely of rubber. A support roller 6 is provided below the hollow mold sleeve 5. The support roller 6 is rotatably mounted between the two sets of brackets 1. The support roller 6 is used to support and transport the breathable substrate. After the breathable substrate is released from the external unwinding device, it passes through the gap between the hollow mold sleeve 5 and the support roller 6.

[0017] A glue supply pipe 2 is fixedly installed between the two sets of brackets 1. The bottom of the glue supply pipe 2 is provided with a strip-shaped conical glue outlet 201, and the bottom surface of the strip-shaped conical glue outlet 201 is in contact with the inner surface of the hollow mold sleeve 5. A spiral blade roller 3 is rotatably assembled inside the glue supply pipe 2. The two ends of the glue supply pipe 2 are respectively connected to glue delivery pipes 202. The two glue delivery pipes 202 are respectively connected to the external glue tank and the peristaltic pump, thus forming a glue circulation delivery loop. The spiral blade roller 3 is driven by a power motor 7. The power motor 7 is fixedly installed on the outside of the bracket 1. The output end of the power motor 7 is connected to the spiral blade roller 3. The operation of the power motor 7 can drive the spiral blade roller 3 to rotate inside the glue supply pipe 2, thereby controlling the glue discharge rate of the strip-shaped conical glue outlet 201.

[0018] The device is also equipped with a transmission mechanism 8, which includes a first transmission gear 801, a second transmission gear 802, and a transmission belt 803. The shaft ends of both sets of drive rollers 4 are fixedly equipped with the first transmission gear 801, and another set of first transmission gears 801 is rotatably mounted on the bracket 1. All the first transmission gears 801 are connected by the transmission belt 803 to ensure that the two sets of drive rollers 4 rotate synchronously. The shaft end of the support roller 6 is fixedly equipped with the second transmission gear 802, which meshes with the first transmission gear 801 on the bracket 1. The second transmission gear 802 and the first transmission gear 801 are matched with a tooth ratio to compensate for the difference in circumference between the drive roller 4 and the support roller 6, so that the linear speed of the hollow mold sleeve 5 is consistent with the conveying speed of the breathable substrate. The outer end face of the bracket 1 is equipped with a protective shell 13, which covers the outside of the transmission mechanism 8 and protects the transmission mechanism 8.

[0019] Two sets of positioning mechanisms 9 are slidably mounted on the base frame 12. Each positioning mechanism 9 includes a sliding frame 901, a slip ring 902, a sealing plate 903, a vertical positioning rod 904, and a guide rod 905. The two sets of guide rods 905 are fixedly installed between the two sets of supports 1, and the sliding frame 901 slidably engages with the guide rods 905. A slip ring 902 is fixedly connected to the sliding frame 901, and the slip ring 902 is slidably sleeved on the outer periphery of the support roller 6. The slip ring 902 can limit the left and right movement of the breathable substrate. To prevent deviation during the conveying of the breathable substrate, a sealing plate 903 is fixedly installed on the top of the slip ring 902, and the upper surface of the sealing plate 903 slides tightly against the bottom surface of the glue supply pipe 2; a vertical positioning rod 904 is also fixedly installed on the slip ring 902, and the top of the vertical positioning rod 904 is slidably connected to the guide rod 905. The side of the vertical positioning rod 904 abuts against the side of the hollow mold sleeve 5 to axially limit the hollow mold sleeve 5 and prevent axial displacement of the hollow mold sleeve 5 during operation.

[0020] A dual-axis motor 10 is fixedly mounted on the base frame 12. The output shafts at both ends of the dual-axis motor 10 are respectively connected to a set of lead screws 11, and the threads of the two sets of lead screws 11 are opposite. The two sets of lead screws 11 are respectively connected to the sliding frames 901 of the two sets of positioning mechanisms 9 to form a threaded transmission engagement. When the dual-axis motor 10 is working, it can drive the two sets of lead screws 11 to rotate synchronously, driving the two sets of positioning mechanisms 9 to move synchronously towards each other or away from each other. On the one hand, it can adapt to breathable substrates of different widths and specifications. On the other hand, the sealing plate 903 moves synchronously with the slip ring 902, dynamically sealing part of the strip-shaped conical glue outlet 201, thereby changing the actual effective glue discharge width of the strip-shaped conical glue outlet 201.

[0021] The working principle of this invention is as follows: The two sets of brackets 1 of this device are fixed at both ends of the top of the base frame 12. The two sets of brackets 1 are movably connected to the two sides of each other, and the two sets of driving rollers 4 are wound with a hollow mold sleeve 5. The hollow holes of the hollow mold sleeve 5 can be processed and shaped according to the shape of the herbal moxibustion patch. In detail, the hollow mold sleeve 5 is made of rubber material. The processing process is to evenly open the shape of the herbal moxibustion patch on a rubber sheet with the same width as the substrate to be coated. Then, the shaped rectangular rubber sheet is surrounded and fitted in the middle position of the outer surface between the two sets of driving rollers 4. The breathable substrate is released from the unwinding equipment, between the hollow die sleeve 5 and the support roller 6, and then enters the next station, such as the shape cutting station. One set of glue delivery pipes 202 delivers glue into the glue supply pipe 2 from one end, while another set of glue delivery pipes 202 delivers glue out from the other end of the glue supply pipe 2. One set of glue delivery pipes 202 can be connected to an external glue tank. The glue tank is then connected to the inlet of a peristaltic pump via a glue pipe, and the outlet of the peristaltic pump is connected to the other set of glue delivery pipes 202, thereby circulating and delivering the glue. Meanwhile, a spiral blade roller 3 is rotatably connected inside the glue supply pipe 2. The spiral blade roller 3 is driven independently by the power motor 7. The conveying of the spiral blade roller 3 can transport the glue from one end of the glue supply pipe 2 to the other end. During the spiral conveying of the glue, some glue can be discharged through the strip-shaped conical glue outlet 201 opened at the bottom of the glue supply pipe 2. Since the bottom of the glue supply tube 2 is in contact with the inner surface of the hollow mold sleeve 5, as the hollow mold sleeve 5 circulates, the glue discharged through the strip-shaped conical glue outlet 201 will gradually fill the hollow holes of the hollow mold sleeve 5 evenly. Furthermore, since the bottom of the strip-shaped conical glue outlet 201 is in contact with the non-cut surface of the hollow mold sleeve 5, when the hollow mold sleeve 5 without a cut hole passes through the strip-shaped conical glue outlet 201, the strip-shaped conical glue outlet 201 will not discharge glue, and even the amount of glue itself adhering to the hollow mold sleeve 5 can be ignored. When the hollow hole of the hollow mold sleeve 5 is filled with glue, the glue will be transferred to the surface of the breathable substrate at the same time. The forward speed of the breathable substrate and the cyclic rotation speed of the hollow mold sleeve 5 correspond to each other. The support roller 6 is located below the breathable substrate and serves to support and transport the breathable substrate. Furthermore, the glue discharge speed through the strip-shaped conical glue outlet 201 can be controlled by rotating the spiral blade roller 3 via the power motor 7, thereby changing the glue discharge speed of the strip-shaped conical glue outlet 201 and achieving quantitative glue discharge for hollow holes of different sizes. Furthermore, a dual-axis motor 10 is installed on the base frame 12. The two ends of the dual-axis motor 10 are connected to two sets of lead screws 11 with opposite directions of rotation. The outer sides of the two sets of lead screws 11 are threaded and slidably connected to positioning mechanisms 9. The two sets of positioning mechanisms 9 can move away or closer synchronously under the action of the dual-axis motor 10. In other words, by adjusting the distance between the two sets of positioning mechanisms 9, it is possible to adapt to the gluing operation of breathable substrates of different widths. The slip ring 902 is slidably connected to the support roller 6, which can center the breathable substrate and prevent it from deviating. Both sets of slip rings 902 are fixed with sealing plates 903 at the top. The top surfaces of the two sets of sealing plates 903 slide and fit tightly against the bottom surface of the glue supply tube 2. In other words, when processing breathable substrates of different widths, the two sets of sealing plates 903 can dynamically adjust the glue discharge width of the strip-shaped conical glue outlet 201. Meanwhile, each slip ring 902 has vertical positioning rods 904 fixed on both sides of its top. The vertical positioning rods 904 can center the hollow mold sleeve 5 to prevent the hollow mold sleeve 5 from deviating during the cyclic operation. Finally, a transmission mechanism 8 is provided at one end between the two sets of drive rollers 4 and the set of support rollers 6. The two sets of first transmission gears 801 are fixed at the shaft center at one end of the two sets of drive rollers 4, and another set of first transmission gears 801 is movably connected to a set of brackets 1. The three sets of first transmission gears 801 are connected by transmission belts 803, which ensures that the drilling speed of the two sets of drive rollers 4 is synchronized. Meanwhile, a set of first transmission gears 801, which are movably connected to the bracket 1, meshes with a second transmission gear 802, which is fixed at one end of the shaft of the support roller 6. Thus, the rotation direction of the support roller 6 is opposite to the rotation direction of the two sets of drive rollers 4. At the same time, there is a gear ratio between the second transmission gear 802 and the first transmission gear 801, which can compensate for the difference in circumference between the drive roller 4 and the support roller 6, thereby ensuring that the forward distance of the two sets of drive rollers 4 driving the hollow mold sleeve 5 is consistent with the forward distance of the hollow mold sleeve 5 and the support roller 6 driving the substrate. In summary, this invention utilizes the perforated holes on the perforated mold sleeve 5 that match the shape of the herbal moxibustion heat patch to achieve precise and quantitative glue dispensing. The glue only fills the perforated hole area of ​​the perforated mold sleeve 5, and only the glue corresponding to the effective area of ​​the finished heat patch is transferred to the surface of the breathable substrate. The remaining non-finished areas of the substrate are not coated with glue. The surface of the substrate residue generated by subsequent die-cutting and punching operations is basically free of glue layer, thus avoiding the adhesive from being discarded along with the waste material, greatly improving the material utilization rate of the adhesive, reducing glue consumption, and effectively reducing the raw material cost of herbal moxibustion heat patch production. The adhesive is supplied by a spiral blade roller 3 in conjunction with a strip-shaped conical glue outlet 201. The speed of the spiral blade roller 3 can be adjusted by a power motor 7, thereby controlling the glue discharge rate of the strip-shaped conical glue outlet 201. It can achieve quantitative glue discharge according to the different specifications and sizes of the heat patch hollow holes, and can flexibly adapt to the production requirements of different products for the amount of adhesive applied. The amount of adhesive applied is well controllable, ensuring that the thickness of the adhesive layer transferred on the surface of the breathable substrate is uniform and consistent, and improving the processing consistency of the adhesive layer of the product. Since the adhesive is applied only to the local area corresponding to the finished heat patch, there is no excess adhesive layer in the non-cut finished area of ​​the substrate. This can effectively suppress the quality defects caused by the full-area adhesive application process, such as glue overflow at the product edge and adhesion between sheets. It reduces defective products caused by glue overflow and sticking, reduces the workload of subsequent cleaning and rework, improves the yield of herbal moxibustion heat patches, and is more suitable for large-scale continuous and stable production. This device is equipped with two positioning mechanisms 9 driven by a dual-axis motor 10 and two sets of lead screws 11 with opposite rotation directions. The slip ring 902 can limit and center the breathable substrate to prevent it from deviating during the substrate conveying process. The sealing plate 903 can dynamically adjust the actual glue discharge width of the strip-shaped conical glue outlet 201 synchronously with the width of the substrate. The vertical positioning rod 904 can guide and limit the hollow mold sleeve 5 to prevent the hollow mold sleeve 5 from shifting during cyclic operation. The whole mechanism can be adapted to a variety of breathable substrates with different widths and specifications, and the equipment has strong versatility.

[0022] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A roller-type quantitative adhesive coating device for a breathable substrate of herbal moxibustion warming patch, characterized in that: Includes a base frame (12), two sets of brackets (1) mounted on the base frame (12), a drive roller (4) for cyclically fitting the hollow mold sleeve (5), a support roller (6) for supporting and conveying the breathable substrate, a glue supply pipe (2) for supplying glue to the hollow mold sleeve (5), a spiral blade roller (3) located inside the glue supply pipe (2) for pushing the glue, and a positioning mechanism (9) for limiting the position of the breathable substrate and the hollow mold sleeve (5) and adaptable to different substrate widths; The hollow mold sleeve (5) is rotatably assembled between two sets of drive rollers (4). The hollow mold sleeve (5) has a hollow hole that matches the outline of the finished herbal moxibustion patch, which is used to transfer glue only in the corresponding area of ​​the finished patch. The bottom of the glue supply tube (2) is provided with a strip-shaped conical glue outlet (201), which is in contact with the inner surface of the hollow mold sleeve (5) and is used to quantitatively fill glue into the hollow hole of the hollow mold sleeve (5). The spiral blade roller (3) is located inside the glue supply pipe (2) and is rotatably connected to the glue supply pipe (2); The positioning mechanism (9) is slidably mounted on the base frame (12) to achieve the centering and anti-deviation of the breathable substrate, dynamically adjust the effective width of the glue dispensing, and limit the axial displacement of the hollow mold sleeve (5).

2. The roll-type glue metering device for the breathable base material of the herbal moxibustion warm compress according to claim 1, characterized in that: The glue supply pipe (2) is connected to two sets of glue delivery pipes (202), and the two sets of glue delivery pipes (202) are respectively connected to the two ends of the glue supply pipe (2) to realize the glue circulation delivery.

3. The roll-type glue metering device for the breathable base material of the herbal moxibustion warm compress according to claim 1, characterized in that: The positioning mechanism (9) includes a sliding frame (901), a slip ring (902), a sealing plate (903), a vertical positioning rod (904), and a guide rod (905). The slip ring (902) is slidably sleeved on the outer periphery of the support roller (6), and the slip ring (902) is used to limit the breathable substrate to the left and right. The sealing plate (903) is fixed on the top of the slip ring (902). The sealing plate (903) slides against the bottom surface of the glue supply tube (2) to dynamically close part of the strip-shaped conical glue outlet (201) according to the width of the substrate to change the actual glue discharge width. The vertical positioning rod (904) is fixedly mounted on the slip ring (902). The vertical positioning rod (904) abuts against the side of the hollow mold sleeve (5) and is used to axially limit the hollow mold sleeve (5). The sliding frame (901) is fixedly connected to the slip ring (902); The two sets of guide rods (905) are fixed on both sides between the two sets of brackets (1), and the top of the vertical positioning rod (904) is slidably connected to the guide rod (905).

4. The roll-type glue metering device for the breathable base material of the herbal moxibustion warm compress according to claim 3, characterized in that: It also includes a dual-axis motor (10) and two sets of lead screws (11) with opposite directions of rotation. The dual-axis motor (10) is fixedly mounted on the base frame (12). The output shaft of the dual-axis motor (10) is connected to the two sets of lead screws (11) respectively. The two sets of lead screws (11) are threadedly engaged with the sliding frame (901) of the two sets of positioning mechanisms (9) respectively, and are used to drive the two sets of positioning mechanisms (9) to move synchronously towards each other or away from each other.

5. The herbal moxibustion warming patch breathable substrate roller quantitative adhesive coating device according to claim 1, characterized in that: It also includes a power motor (7) for driving the helical blade roller (3) and a transmission mechanism (8) for realizing synchronous transmission between the drive roller (4) and the support roller (6). The power motor (7) is connected to the spiral blade roller (3) for controlling the discharge rate of the strip-shaped conical glue outlet (201); The transmission mechanism (8) is connected to the drive roller (4) and the support roller (6) respectively, and is used to compensate for the difference in the circumference of the roller body so that the linear speed of the hollow mold sleeve (5) is synchronized with the conveying speed of the breathable substrate.

6. The herbal moxibustion warming patch breathable substrate roller quantitative adhesive coating device according to claim 5, characterized in that: The transmission mechanism (8) includes a first transmission gear (801), a second transmission gear (802), and a transmission belt (803). The first transmission gear (801) is fixedly mounted on one end of the shaft of each of the two sets of drive rollers (4). Another set of first transmission gears (801) is also rotatably mounted on the bracket (1). The multiple sets of first transmission gears (801) are connected by a transmission belt (803) to ensure that the two sets of drive rollers (4) rotate synchronously. The second transmission gear (802) is fixedly mounted on the shaft end of the support roller (6). The second transmission gear (802) meshes with the first transmission gear (801) on the bracket (1). The second transmission gear (802) and the first transmission gear (801) are set with a matching gear ratio to compensate for the difference in circumference between the drive roller (4) and the support roller (6).

7. The herbal moxibustion warming patch breathable substrate roller quantitative adhesive coating device according to claim 1, characterized in that: The hollow mold sleeve (5) is made of rubber. The width of the hollow mold sleeve (5) is adapted to the width of the breathable substrate to be processed. The hollow holes on the hollow mold sleeve (5) are arranged in the shape of the herbal moxibustion patch.

8. The herbal moxibustion warming patch breathable substrate roller quantitative adhesive coating device according to claim 5, characterized in that: It also includes a protective shell (13), which is mounted on the outer end face of a set of brackets (1) for protecting the transmission mechanism (8).

9. The herbal moxibustion warming patch breathable substrate roller quantitative adhesive coating device according to claim 1, characterized in that: The bottom opening of the strip-shaped conical glue outlet (201) is in contact with the surface of the hollow mold sleeve (5) without a hollow hole, so as to prevent glue from being discharged when the non-hollow area of ​​the hollow mold sleeve (5) passes through the strip-shaped conical glue outlet (201), and allow glue to enter the hollow hole only when the hollow hole passes through the strip-shaped conical glue outlet (201).

10. The herbal moxibustion warming patch breathable substrate roller quantitative adhesive coating device according to claim 1, characterized in that: The support roller (6) is located below the drive roller (4). After the breathable substrate is released from the unwinding device, it passes between the hollow die sleeve (5) and the support roller (6). The support roller (6) is used to support and transport the breathable substrate and make the upper surface of the breathable substrate fit with the outer surface of the hollow die sleeve (5) to complete the glue transfer.

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